EP 1163216 B1 20040121 - PREPARATION OF PEROXY AND PEROXYESTER TUNGSTEN DERIVATIVES
Title (en)
PREPARATION OF PEROXY AND PEROXYESTER TUNGSTEN DERIVATIVES
Title (de)
HERSTELLUNG VON PEROXY- UND PEROXYESTER-WOLFRAMDERIVATEN
Title (fr)
PREPARATION DE DERIVES PEROXY ET PEROXYESTER DE TUNGSTENE
Publication
Application
Priority
- AU 9901058 W 19991129
- AU PP742298 A 19981130
Abstract (en)
[origin: WO0032571A1] Electrochromic coating solutions are prepared by allowing hydrated tungsten oxides to react with an admixture of hydrogen peroxide and an organic acid or anhydride. The intermediate tungsten peroxy acid is esterified by heating under reflux with alcohol to produce a precursor solution including peroxyester tungsten derivatives. The precursor solution can be used to apply a coating to the conductive surface of the substrate by dip coating, spraying or spin coating. The coating is then dried and is heated to a sufficiently high temperature to convert the tungsten peroxyesters to amorphous tungsten oxide with good electrochromic properties.
IPC 1-7
IPC 8 full level
C07F 11/00 (2006.01)
CPC (source: EP)
C07F 11/005 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0032571 A1 20000608; AT E258164 T1 20040215; AU PP742298 A0 19981224; DE 69914380 D1 20040226; DE 69914380 T2 20041028; EP 1163216 A1 20011219; EP 1163216 A4 20020619; EP 1163216 B1 20040121
DOCDB simple family (application)
AU 9901058 W 19991129; AT 99957772 T 19991129; AU PP742298 A 19981130; DE 69914380 T 19991129; EP 99957772 A 19991129